Allison kicks a stone off the edge of a tall cliff. The

Last updated: 7/19/2022

Allison kicks a stone off the edge of a tall cliff. The distance d (in feet), between the rock and the ground seconds after being kicked is d(t)= -t^2 +4t+474. a. How many seconds elapse before the rock is at a height of 424 feet above the ground? Round your answer to the nearest tenth of a second. b. What is the maximum height that the rock reaches? Round your answer to the nearest whole foot.